The winter season is now in full swing, with low temperatures and high winds. Facial palsy is a disease that is highly prevalent in the winter season. Facial palsy, also known as facial neuritis or idiopathic facial nerve palsy, is a non-specific inflammation of one side of the facial nerve that causes paralysis of the facial expression muscles. In winter, if the cold wind blows directly on the face, it will cause the facial blood vessels to constrict and blood circulation to become impaired, resulting in ischemia and hypoxia of the facial nerve, followed by edema and nerve conduction block, which will cause the facial expression muscles innervated by the facial nerve to become dysfunctional and facial paralysis to occur. In fact, besides the most common cause of facial palsy, which is prolonged cold stimulation of the face, there are also many viral infections that cause it. The disease can develop all year round, but the incidence is high during the cold season. The onset is rapid, often without aura, and the corners of the mouth are suddenly found to be crooked, which patients often mistake for a stroke. The affected facial muscles may be paralyzed, the affected side of the face is flaccid, the corners of the mouth droop and cannot be closed, drooling, food is stored in the gap between the teeth and cheeks when eating, the frontalis muscle becomes shallow or disappears, the eye fissure is large, the affected side of the eye cannot be closed, tears flow out, the nasolabial folds are shallow or flat, and one cannot frown, puff out the cheeks or whistle to leak wind. Once you accidentally get facial palsy, you should consult a doctor in time to rule out cerebrovascular disease and secondary facial palsy caused by infection and tumor in the five senses, to clarify the cause of the disease and to formulate a reasonable treatment plan, and not to blindly treat yourself. Otherwise, the edema of facial nerve may be aggravated due to adverse stimulation, which may prompt and accelerate the degenerative reaction of facial nerve or secondary facial muscle spasm. Once the facial nerve degeneration reaction occurs, it is difficult to cure completely. According to foreign statistics, about 70% of patients can recover slowly even without treatment, with an average recovery time of about 20 days. However, most patients need timely diagnosis and treatment, and the recovery of facial nerve function is often incomplete without timely treatment. About 20% of patients cannot recover completely and have mild sequelae; another 10% of patients will have more obvious sequelae, such as facial muscle twitching, smaller eye fissures, crooked mouth when laughing, open mouth and closed eyes, and twitching at the corners of the mouth when closing the eyes, which seriously affects facial appearance and is called “disfiguring facial palsy”. Facial palsy is difficult to treat and should be actively prevented. Because the facial nerve also innervates the orbicularis oculi muscle, which manages eyelid closure, patients with facial palsy also experience the inability to close their eyes and blink. Especially when the cornea is exposed for a long time during sleep, corneal dryness can occur and eye infections can easily occur, damaging vision in severe cases. At present, the common clinical treatment methods include acupuncture, physical therapy, western medicine and Chinese medicine. Acupuncture therapy: as the traditional treatment of facial palsy occupies the main position in the clinic. Especially, it plays an important role in the middle and late stage treatment of facial palsy. Acupuncture points on the face and limbs can increase the excitability of nerve tissue, improve the immunity of the body, improve local and systemic blood circulation, and have obvious anti-inflammatory and anti-edema effects. However, acupuncture treatment has certain limitations, such as pain, long-term use of patients difficult to accept, the amount of stimulation is not easy to grasp, etc., it is best to find experienced professional acupuncturists to operate. The moxibustion method is easy to grasp and easy for patients to treat themselves. Patients can use hanging moxibustion, moxibustion with ginger and other moxibustion treatment methods, which can be administered in the early, middle and late stages of facial palsy, and are easy to implement and safe. In addition, acupuncture, cutting and acupuncture point injection developed from acupuncture therapy are also widely used in facial palsy treatment, and their efficacy is worthy of recognition. Physiotherapy: In the early stage, it can promote blood circulation in the facial nerve area, control the development of inflammation and eliminate local nerve edema; in the later stage, it can improve the nutritional state of nerve meatus tissue, increase nerve excitability, promote nerve function recovery and prevent muscle atrophy. Microwave and laser irradiation of the affected side can be done at the physiotherapy department of the hospital. Hot compresses are also applied to the affected face and the mastoid behind the ear at home. Western medicine treatment: mainly antiviral drugs, anti-inflammatory and anti-edema drugs, nerve nutrition drugs and so on. Commonly used drugs include acyclic guanosine, prednisone, dexamethasone, mannitol, dibazol, niacin, nimodipine, vitamin B12, methylcobalamin, ganglioside, nerve growth factor, etc., which can be used according to the actual situation. It is worth noting that the application of hormonal drugs such as prednisone and dexamethasone must be used regularly under the guidance of a professional physician and pay attention to the prevention of side effects to avoid aggravating the condition. Chinese medicine treatment: including internal and external use of Chinese medicine. The representative formula is “Zhanzheng San”, which can be added or subtracted according to the principle of “diagnosis and treatment”. Externally, we can apply herbal medicine to acupuncture points, plug the ears and nose, etc. Commonly used medicines include “White Horse Paste” and “Xiang Huang San”, which are composed of musk, Ba Dou, Zhan Wu and strychnine, etc. They can warm the meridians and disperse the cold, and promote the atrophy of the meridians, with remarkable efficacy. In addition to treatment, attention should also be paid to diet and living. The affected side of the face and mastoid should be kept warm to avoid catching cold. Pay attention to the protection of the affected eye. Self-exercise more expressive movements and chewing exercises, together with self-massage treatment. In terms of diet, quit smoking and alcohol, eat more fruits and vegetables, high-quality protein to consume enough nutrition to enhance resistance to disease.